I've taken a list of English words, and examined each of them to see what they sound like (using the PHP metaphone function). This page lists the most common metaphone codes, along with their words. You can also search for a word of your own, and see which words sound similar - and which ones rhyme, and which ones alliterate.
bahts bats beats boats batts bates baits beauts buts bots bawties bets bads bits battues beauties bawds butes bitsy betas butts botts bites bitts bauds beets beads bytes bouts boots botas beauteous buttes biotas bettas betise badass buteos boites baddies bawdies butties bootees booties beds bids bods buds
bahts ghauts chits fiats mates dahs whets moats coatis matts tats bates huts phuts satis keddahs nates bats aits baits hits oats heats gaits gats batts vatus chats shots shiatsu cheetahs whits whats teats doats dates riatas meats shittahs katas lats wats dauts rats ates pates houdahs patsy cates rates hets hates ghats phots coats hats neats hiatus fates fatso boats gnats kats sates howdahs beauts eats tates mats cats meatus wheats beats lotahs feats chetahs gates vats haets qats heights peats jatos pats hots odahs fats ratos datos waits goats whydahs shits mauts reatas seats dawts tauts watts whidahs cheats chuddahs shoats shuts
baht bat bait bate bateau batt batteau battu battue batty bawtie bawty beat boat abate